End cover seal, also known as end cover or dust cover oil seal, is mostly used in gearboxes and reducers to prevent dust and dirt from entering the moving parts. It is mainly used in hydraulic equipment such as engineering machinery, injection molding machines, industrial machinery, hydraulic presses, forklifts, cranes, hydraulic breakers, etc., to seal the holes, cores, and bearings, and is mainly suitable for components such as gearboxes, serving as a substitute for end flanges or end covers, with the outer rubber layer making it less prone to oil leakage in the oil seal seat. At the same time, it strengthens the overall appearance and integrity of the gearbox and other components. Oil seal covers generally refer to sealing covers for containers involving media such as gasoline, engine oil, lubricating oil, and so on in mechanical equipment.